forked from Minki/linux
e87ad55393
o Support pci error detection and recovery. o Refactor suspend and resume code, to share with io_error_detected, and slot_reset callbacks o NX_NEED_AER device state added, to synchronize with firmware recovery. Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2873 lines
67 KiB
C
2873 lines
67 KiB
C
/*
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* Copyright (C) 2003 - 2009 NetXen, Inc.
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* Copyright (C) 2009 - QLogic Corporation.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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* MA 02111-1307, USA.
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*
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* The full GNU General Public License is included in this distribution
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* in the file called LICENSE.
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*
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*/
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#include <linux/vmalloc.h>
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#include <linux/interrupt.h>
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#include "netxen_nic_hw.h"
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#include "netxen_nic.h"
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#include <linux/dma-mapping.h>
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#include <linux/if_vlan.h>
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#include <net/ip.h>
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#include <linux/ipv6.h>
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#include <linux/inetdevice.h>
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#include <linux/sysfs.h>
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#include <linux/aer.h>
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MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
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MODULE_LICENSE("GPL");
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MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
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MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
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MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
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MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
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MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
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char netxen_nic_driver_name[] = "netxen_nic";
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static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
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NETXEN_NIC_LINUX_VERSIONID;
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static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
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/* Default to restricted 1G auto-neg mode */
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static int wol_port_mode = 5;
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static int use_msi = 1;
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static int use_msi_x = 1;
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static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
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module_param(auto_fw_reset, int, 0644);
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MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
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static int __devinit netxen_nic_probe(struct pci_dev *pdev,
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const struct pci_device_id *ent);
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static void __devexit netxen_nic_remove(struct pci_dev *pdev);
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static int netxen_nic_open(struct net_device *netdev);
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static int netxen_nic_close(struct net_device *netdev);
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static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
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struct net_device *);
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static void netxen_tx_timeout(struct net_device *netdev);
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static void netxen_tx_timeout_task(struct work_struct *work);
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static void netxen_fw_poll_work(struct work_struct *work);
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static void netxen_schedule_work(struct netxen_adapter *adapter,
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work_func_t func, int delay);
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static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
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static int netxen_nic_poll(struct napi_struct *napi, int budget);
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#ifdef CONFIG_NET_POLL_CONTROLLER
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static void netxen_nic_poll_controller(struct net_device *netdev);
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#endif
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static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
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static void netxen_create_diag_entries(struct netxen_adapter *adapter);
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static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
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static int nx_dev_request_aer(struct netxen_adapter *adapter);
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static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
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static int netxen_can_start_firmware(struct netxen_adapter *adapter);
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static irqreturn_t netxen_intr(int irq, void *data);
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static irqreturn_t netxen_msi_intr(int irq, void *data);
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static irqreturn_t netxen_msix_intr(int irq, void *data);
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static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
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/* PCI Device ID Table */
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#define ENTRY(device) \
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{PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
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.class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
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static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
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ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
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ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
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ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
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ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
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ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
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ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
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ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
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ENTRY(PCI_DEVICE_ID_NX3031),
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{0,}
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};
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MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
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static uint32_t crb_cmd_producer[4] = {
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CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
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CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
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};
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void
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netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
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struct nx_host_tx_ring *tx_ring)
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{
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NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
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if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
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netif_stop_queue(adapter->netdev);
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smp_mb();
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}
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}
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static uint32_t crb_cmd_consumer[4] = {
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CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
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CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
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};
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static inline void
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netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
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struct nx_host_tx_ring *tx_ring)
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{
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NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
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}
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static uint32_t msi_tgt_status[8] = {
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ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
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ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
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ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
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ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
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};
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static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
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static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
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{
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struct netxen_adapter *adapter = sds_ring->adapter;
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NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
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}
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static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
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{
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struct netxen_adapter *adapter = sds_ring->adapter;
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NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
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if (!NETXEN_IS_MSI_FAMILY(adapter))
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NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
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}
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static int
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netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
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{
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int size = sizeof(struct nx_host_sds_ring) * count;
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recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
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return (recv_ctx->sds_rings == NULL);
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}
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static void
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netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
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{
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if (recv_ctx->sds_rings != NULL)
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kfree(recv_ctx->sds_rings);
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recv_ctx->sds_rings = NULL;
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}
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static int
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netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
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{
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int ring;
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
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return -ENOMEM;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netif_napi_add(netdev, &sds_ring->napi,
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netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
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}
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return 0;
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}
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static void
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netxen_napi_del(struct netxen_adapter *adapter)
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{
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int ring;
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netif_napi_del(&sds_ring->napi);
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}
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netxen_free_sds_rings(&adapter->recv_ctx);
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}
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static void
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netxen_napi_enable(struct netxen_adapter *adapter)
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{
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int ring;
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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napi_enable(&sds_ring->napi);
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netxen_nic_enable_int(sds_ring);
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}
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}
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static void
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netxen_napi_disable(struct netxen_adapter *adapter)
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{
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int ring;
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struct nx_host_sds_ring *sds_ring;
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struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
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for (ring = 0; ring < adapter->max_sds_rings; ring++) {
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sds_ring = &recv_ctx->sds_rings[ring];
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netxen_nic_disable_int(sds_ring);
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napi_synchronize(&sds_ring->napi);
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napi_disable(&sds_ring->napi);
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}
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}
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static int nx_set_dma_mask(struct netxen_adapter *adapter)
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{
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struct pci_dev *pdev = adapter->pdev;
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uint64_t mask, cmask;
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adapter->pci_using_dac = 0;
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mask = DMA_BIT_MASK(32);
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cmask = DMA_BIT_MASK(32);
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if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
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#ifndef CONFIG_IA64
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mask = DMA_BIT_MASK(35);
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#endif
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} else {
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mask = DMA_BIT_MASK(39);
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cmask = mask;
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}
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if (pci_set_dma_mask(pdev, mask) == 0 &&
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pci_set_consistent_dma_mask(pdev, cmask) == 0) {
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adapter->pci_using_dac = 1;
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return 0;
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}
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return -EIO;
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}
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/* Update addressable range if firmware supports it */
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static int
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nx_update_dma_mask(struct netxen_adapter *adapter)
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{
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int change, shift, err;
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uint64_t mask, old_mask, old_cmask;
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struct pci_dev *pdev = adapter->pdev;
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change = 0;
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shift = NXRD32(adapter, CRB_DMA_SHIFT);
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if (shift > 32)
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return 0;
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if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
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change = 1;
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else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
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change = 1;
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if (change) {
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old_mask = pdev->dma_mask;
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old_cmask = pdev->dev.coherent_dma_mask;
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mask = DMA_BIT_MASK(32+shift);
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err = pci_set_dma_mask(pdev, mask);
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if (err)
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goto err_out;
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if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
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err = pci_set_consistent_dma_mask(pdev, mask);
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if (err)
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goto err_out;
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}
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dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
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}
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return 0;
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err_out:
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pci_set_dma_mask(pdev, old_mask);
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pci_set_consistent_dma_mask(pdev, old_cmask);
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return err;
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}
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static int
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netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
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{
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u32 val, timeout;
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if (first_boot == 0x55555555) {
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/* This is the first boot after power up */
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NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
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if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
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return 0;
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/* PCI bus master workaround */
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first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
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if (!(first_boot & 0x4)) {
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first_boot |= 0x4;
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NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
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first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
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}
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/* This is the first boot after power up */
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first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
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if (first_boot != 0x80000f) {
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/* clear the register for future unloads/loads */
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NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
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return -EIO;
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}
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/* Start P2 boot loader */
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val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
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NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
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timeout = 0;
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do {
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msleep(1);
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val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
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if (++timeout > 5000)
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return -EIO;
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} while (val == NETXEN_BDINFO_MAGIC);
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}
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return 0;
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}
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static void netxen_set_port_mode(struct netxen_adapter *adapter)
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{
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u32 val, data;
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val = adapter->ahw.board_type;
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if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
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(val == NETXEN_BRDTYPE_P3_XG_LOM)) {
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if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
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data = NETXEN_PORT_MODE_802_3_AP;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_XG) {
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data = NETXEN_PORT_MODE_XG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
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data = NETXEN_PORT_MODE_AUTO_NEG_1G;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
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data = NETXEN_PORT_MODE_AUTO_NEG_XG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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} else {
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data = NETXEN_PORT_MODE_AUTO_NEG;
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NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
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}
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if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
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(wol_port_mode != NETXEN_PORT_MODE_XG) &&
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(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
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(wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
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wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
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}
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NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
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}
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}
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static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
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{
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u32 control;
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int pos;
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pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
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if (pos) {
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pci_read_config_dword(pdev, pos, &control);
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if (enable)
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control |= PCI_MSIX_FLAGS_ENABLE;
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else
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control = 0;
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pci_write_config_dword(pdev, pos, control);
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}
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}
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static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
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{
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int i;
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for (i = 0; i < count; i++)
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adapter->msix_entries[i].entry = i;
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}
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static int
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netxen_read_mac_addr(struct netxen_adapter *adapter)
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{
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int i;
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unsigned char *p;
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__le64 mac_addr;
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struct net_device *netdev = adapter->netdev;
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struct pci_dev *pdev = adapter->pdev;
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if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
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if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
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return -EIO;
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} else {
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if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
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return -EIO;
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}
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p = (unsigned char *)&mac_addr;
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for (i = 0; i < 6; i++)
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netdev->dev_addr[i] = *(p + 5 - i);
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memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
|
|
memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
|
|
|
|
/* set station address */
|
|
|
|
if (!is_valid_ether_addr(netdev->perm_addr))
|
|
dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int netxen_nic_set_mac(struct net_device *netdev, void *p)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
struct sockaddr *addr = p;
|
|
|
|
if (!is_valid_ether_addr(addr->sa_data))
|
|
return -EINVAL;
|
|
|
|
if (netif_running(netdev)) {
|
|
netif_device_detach(netdev);
|
|
netxen_napi_disable(adapter);
|
|
}
|
|
|
|
memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
|
|
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
|
|
adapter->macaddr_set(adapter, addr->sa_data);
|
|
|
|
if (netif_running(netdev)) {
|
|
netif_device_attach(netdev);
|
|
netxen_napi_enable(adapter);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void netxen_set_multicast_list(struct net_device *dev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(dev);
|
|
|
|
adapter->set_multi(dev);
|
|
}
|
|
|
|
static const struct net_device_ops netxen_netdev_ops = {
|
|
.ndo_open = netxen_nic_open,
|
|
.ndo_stop = netxen_nic_close,
|
|
.ndo_start_xmit = netxen_nic_xmit_frame,
|
|
.ndo_get_stats = netxen_nic_get_stats,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_set_multicast_list = netxen_set_multicast_list,
|
|
.ndo_set_mac_address = netxen_nic_set_mac,
|
|
.ndo_change_mtu = netxen_nic_change_mtu,
|
|
.ndo_tx_timeout = netxen_tx_timeout,
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
.ndo_poll_controller = netxen_nic_poll_controller,
|
|
#endif
|
|
};
|
|
|
|
static void
|
|
netxen_setup_intr(struct netxen_adapter *adapter)
|
|
{
|
|
struct netxen_legacy_intr_set *legacy_intrp;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
int err, num_msix;
|
|
|
|
if (adapter->rss_supported) {
|
|
num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
|
|
MSIX_ENTRIES_PER_ADAPTER : 2;
|
|
} else
|
|
num_msix = 1;
|
|
|
|
adapter->max_sds_rings = 1;
|
|
|
|
adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
|
|
|
|
if (adapter->ahw.revision_id >= NX_P3_B0)
|
|
legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
|
|
else
|
|
legacy_intrp = &legacy_intr[0];
|
|
|
|
adapter->int_vec_bit = legacy_intrp->int_vec_bit;
|
|
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
|
|
legacy_intrp->tgt_status_reg);
|
|
adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
|
|
legacy_intrp->tgt_mask_reg);
|
|
adapter->pci_int_reg = netxen_get_ioaddr(adapter,
|
|
legacy_intrp->pci_int_reg);
|
|
adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
|
|
|
|
if (adapter->ahw.revision_id >= NX_P3_B1)
|
|
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
|
|
ISR_INT_STATE_REG);
|
|
else
|
|
adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
|
|
CRB_INT_VECTOR);
|
|
|
|
netxen_set_msix_bit(pdev, 0);
|
|
|
|
if (adapter->msix_supported) {
|
|
|
|
netxen_init_msix_entries(adapter, num_msix);
|
|
err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
|
|
if (err == 0) {
|
|
adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
|
|
netxen_set_msix_bit(pdev, 1);
|
|
|
|
if (adapter->rss_supported)
|
|
adapter->max_sds_rings = num_msix;
|
|
|
|
dev_info(&pdev->dev, "using msi-x interrupts\n");
|
|
return;
|
|
}
|
|
|
|
if (err > 0)
|
|
pci_disable_msix(pdev);
|
|
|
|
/* fall through for msi */
|
|
}
|
|
|
|
if (use_msi && !pci_enable_msi(pdev)) {
|
|
adapter->flags |= NETXEN_NIC_MSI_ENABLED;
|
|
adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
|
|
msi_tgt_status[adapter->ahw.pci_func]);
|
|
dev_info(&pdev->dev, "using msi interrupts\n");
|
|
adapter->msix_entries[0].vector = pdev->irq;
|
|
return;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "using legacy interrupts\n");
|
|
adapter->msix_entries[0].vector = pdev->irq;
|
|
}
|
|
|
|
static void
|
|
netxen_teardown_intr(struct netxen_adapter *adapter)
|
|
{
|
|
if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
|
|
pci_disable_msix(adapter->pdev);
|
|
if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
|
|
pci_disable_msi(adapter->pdev);
|
|
}
|
|
|
|
static void
|
|
netxen_cleanup_pci_map(struct netxen_adapter *adapter)
|
|
{
|
|
if (adapter->ahw.db_base != NULL)
|
|
iounmap(adapter->ahw.db_base);
|
|
if (adapter->ahw.pci_base0 != NULL)
|
|
iounmap(adapter->ahw.pci_base0);
|
|
if (adapter->ahw.pci_base1 != NULL)
|
|
iounmap(adapter->ahw.pci_base1);
|
|
if (adapter->ahw.pci_base2 != NULL)
|
|
iounmap(adapter->ahw.pci_base2);
|
|
}
|
|
|
|
static int
|
|
netxen_setup_pci_map(struct netxen_adapter *adapter)
|
|
{
|
|
void __iomem *mem_ptr0 = NULL;
|
|
void __iomem *mem_ptr1 = NULL;
|
|
void __iomem *mem_ptr2 = NULL;
|
|
void __iomem *db_ptr = NULL;
|
|
|
|
resource_size_t mem_base, db_base;
|
|
unsigned long mem_len, db_len = 0, pci_len0 = 0;
|
|
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
int pci_func = adapter->ahw.pci_func;
|
|
|
|
int err = 0;
|
|
|
|
/*
|
|
* Set the CRB window to invalid. If any register in window 0 is
|
|
* accessed it should set the window to 0 and then reset it to 1.
|
|
*/
|
|
adapter->ahw.crb_win = -1;
|
|
adapter->ahw.ocm_win = -1;
|
|
|
|
/* remap phys address */
|
|
mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
|
|
mem_len = pci_resource_len(pdev, 0);
|
|
|
|
/* 128 Meg of memory */
|
|
if (mem_len == NETXEN_PCI_128MB_SIZE) {
|
|
mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
|
|
mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
|
|
SECOND_PAGE_GROUP_SIZE);
|
|
mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
|
|
THIRD_PAGE_GROUP_SIZE);
|
|
pci_len0 = FIRST_PAGE_GROUP_SIZE;
|
|
} else if (mem_len == NETXEN_PCI_32MB_SIZE) {
|
|
mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
|
|
mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
|
|
SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
|
|
} else if (mem_len == NETXEN_PCI_2MB_SIZE) {
|
|
|
|
mem_ptr0 = pci_ioremap_bar(pdev, 0);
|
|
if (mem_ptr0 == NULL) {
|
|
dev_err(&pdev->dev, "failed to map PCI bar 0\n");
|
|
return -EIO;
|
|
}
|
|
pci_len0 = mem_len;
|
|
} else {
|
|
return -EIO;
|
|
}
|
|
|
|
netxen_setup_hwops(adapter);
|
|
|
|
dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
|
|
|
|
adapter->ahw.pci_base0 = mem_ptr0;
|
|
adapter->ahw.pci_len0 = pci_len0;
|
|
adapter->ahw.pci_base1 = mem_ptr1;
|
|
adapter->ahw.pci_base2 = mem_ptr2;
|
|
|
|
if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
|
|
adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
|
|
NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
|
|
|
|
} else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
|
|
NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
|
|
}
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
goto skip_doorbell;
|
|
|
|
db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
|
|
db_len = pci_resource_len(pdev, 4);
|
|
|
|
if (db_len == 0) {
|
|
printk(KERN_ERR "%s: doorbell is disabled\n",
|
|
netxen_nic_driver_name);
|
|
err = -EIO;
|
|
goto err_out;
|
|
}
|
|
|
|
db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
|
|
if (!db_ptr) {
|
|
printk(KERN_ERR "%s: Failed to allocate doorbell map.",
|
|
netxen_nic_driver_name);
|
|
err = -EIO;
|
|
goto err_out;
|
|
}
|
|
|
|
skip_doorbell:
|
|
adapter->ahw.db_base = db_ptr;
|
|
adapter->ahw.db_len = db_len;
|
|
return 0;
|
|
|
|
err_out:
|
|
netxen_cleanup_pci_map(adapter);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
netxen_check_options(struct netxen_adapter *adapter)
|
|
{
|
|
u32 fw_major, fw_minor, fw_build;
|
|
char brd_name[NETXEN_MAX_SHORT_NAME];
|
|
char serial_num[32];
|
|
int i, offset, val;
|
|
int *ptr32;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
|
|
adapter->driver_mismatch = 0;
|
|
|
|
ptr32 = (int *)&serial_num;
|
|
offset = NX_FW_SERIAL_NUM_OFFSET;
|
|
for (i = 0; i < 8; i++) {
|
|
if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
|
|
dev_err(&pdev->dev, "error reading board info\n");
|
|
adapter->driver_mismatch = 1;
|
|
return;
|
|
}
|
|
ptr32[i] = cpu_to_le32(val);
|
|
offset += sizeof(u32);
|
|
}
|
|
|
|
fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
|
|
fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
|
|
fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
|
|
|
|
adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
|
|
|
|
if (adapter->portnum == 0) {
|
|
get_brd_name_by_type(adapter->ahw.board_type, brd_name);
|
|
|
|
pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
|
|
module_name(THIS_MODULE),
|
|
brd_name, serial_num, adapter->ahw.revision_id);
|
|
}
|
|
|
|
if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
|
|
adapter->driver_mismatch = 1;
|
|
dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
|
|
fw_major, fw_minor, fw_build);
|
|
return;
|
|
}
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
i = NXRD32(adapter, NETXEN_SRE_MISC);
|
|
adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
|
|
fw_major, fw_minor, fw_build,
|
|
adapter->ahw.cut_through ? "cut-through" : "legacy");
|
|
|
|
if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
|
|
adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
|
|
|
|
adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
|
|
|
|
if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
|
|
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
|
|
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
|
|
} else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
|
|
adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
|
|
adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
|
|
}
|
|
|
|
adapter->msix_supported = 0;
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
adapter->msix_supported = !!use_msi_x;
|
|
adapter->rss_supported = !!use_msi_x;
|
|
} else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
|
|
switch (adapter->ahw.board_type) {
|
|
case NETXEN_BRDTYPE_P2_SB31_10G:
|
|
case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
|
|
adapter->msix_supported = !!use_msi_x;
|
|
adapter->rss_supported = !!use_msi_x;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
adapter->num_txd = MAX_CMD_DESCRIPTORS;
|
|
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
|
|
adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
|
|
adapter->max_rds_rings = 3;
|
|
} else {
|
|
adapter->num_lro_rxd = 0;
|
|
adapter->max_rds_rings = 2;
|
|
}
|
|
}
|
|
|
|
static int
|
|
netxen_start_firmware(struct netxen_adapter *adapter)
|
|
{
|
|
int val, err, first_boot;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
|
|
/* required for NX2031 dummy dma */
|
|
err = nx_set_dma_mask(adapter);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!netxen_can_start_firmware(adapter))
|
|
goto wait_init;
|
|
|
|
first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
|
|
|
|
err = netxen_check_hw_init(adapter, first_boot);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "error in init HW init sequence\n");
|
|
return err;
|
|
}
|
|
|
|
netxen_request_firmware(adapter);
|
|
|
|
err = netxen_need_fw_reset(adapter);
|
|
if (err < 0)
|
|
goto err_out;
|
|
if (err == 0)
|
|
goto wait_init;
|
|
|
|
if (first_boot != 0x55555555) {
|
|
NXWR32(adapter, CRB_CMDPEG_STATE, 0);
|
|
netxen_pinit_from_rom(adapter);
|
|
msleep(1);
|
|
}
|
|
|
|
NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
|
|
NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
|
|
NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
netxen_set_port_mode(adapter);
|
|
|
|
err = netxen_load_firmware(adapter);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
netxen_release_firmware(adapter);
|
|
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
|
|
|
|
/* Initialize multicast addr pool owners */
|
|
val = 0x7654;
|
|
if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
|
|
val |= 0x0f000000;
|
|
NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
|
|
|
|
}
|
|
|
|
err = netxen_init_dummy_dma(adapter);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
/*
|
|
* Tell the hardware our version number.
|
|
*/
|
|
val = (_NETXEN_NIC_LINUX_MAJOR << 16)
|
|
| ((_NETXEN_NIC_LINUX_MINOR << 8))
|
|
| (_NETXEN_NIC_LINUX_SUBVERSION);
|
|
NXWR32(adapter, CRB_DRIVER_VERSION, val);
|
|
|
|
wait_init:
|
|
/* Handshake with the card before we register the devices. */
|
|
err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
|
|
if (err) {
|
|
netxen_free_dummy_dma(adapter);
|
|
goto err_out;
|
|
}
|
|
|
|
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
|
|
|
|
nx_update_dma_mask(adapter);
|
|
|
|
netxen_check_options(adapter);
|
|
|
|
adapter->need_fw_reset = 0;
|
|
|
|
/* fall through and release firmware */
|
|
|
|
err_out:
|
|
netxen_release_firmware(adapter);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
netxen_nic_request_irq(struct netxen_adapter *adapter)
|
|
{
|
|
irq_handler_t handler;
|
|
struct nx_host_sds_ring *sds_ring;
|
|
int err, ring;
|
|
|
|
unsigned long flags = IRQF_SAMPLE_RANDOM;
|
|
struct net_device *netdev = adapter->netdev;
|
|
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
|
|
|
|
if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
|
|
handler = netxen_msix_intr;
|
|
else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
|
|
handler = netxen_msi_intr;
|
|
else {
|
|
flags |= IRQF_SHARED;
|
|
handler = netxen_intr;
|
|
}
|
|
adapter->irq = netdev->irq;
|
|
|
|
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
|
|
sds_ring = &recv_ctx->sds_rings[ring];
|
|
sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
|
|
err = request_irq(sds_ring->irq, handler,
|
|
flags, sds_ring->name, sds_ring);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
netxen_nic_free_irq(struct netxen_adapter *adapter)
|
|
{
|
|
int ring;
|
|
struct nx_host_sds_ring *sds_ring;
|
|
|
|
struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
|
|
|
|
for (ring = 0; ring < adapter->max_sds_rings; ring++) {
|
|
sds_ring = &recv_ctx->sds_rings[ring];
|
|
free_irq(sds_ring->irq, sds_ring);
|
|
}
|
|
}
|
|
|
|
static void
|
|
netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
|
|
{
|
|
adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
|
|
adapter->coal.normal.data.rx_time_us =
|
|
NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
|
|
adapter->coal.normal.data.rx_packets =
|
|
NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
|
|
adapter->coal.normal.data.tx_time_us =
|
|
NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
|
|
adapter->coal.normal.data.tx_packets =
|
|
NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
|
|
}
|
|
|
|
/* with rtnl_lock */
|
|
static int
|
|
__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
|
|
{
|
|
int err;
|
|
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
return -EIO;
|
|
|
|
err = adapter->init_port(adapter, adapter->physical_port);
|
|
if (err) {
|
|
printk(KERN_ERR "%s: Failed to initialize port %d\n",
|
|
netxen_nic_driver_name, adapter->portnum);
|
|
return err;
|
|
}
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
|
adapter->macaddr_set(adapter, adapter->mac_addr);
|
|
|
|
adapter->set_multi(netdev);
|
|
adapter->set_mtu(adapter, netdev->mtu);
|
|
|
|
adapter->ahw.linkup = 0;
|
|
|
|
if (adapter->max_sds_rings > 1)
|
|
netxen_config_rss(adapter, 1);
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
netxen_config_intr_coalesce(adapter);
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
|
|
netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
|
|
|
|
netxen_napi_enable(adapter);
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
|
|
netxen_linkevent_request(adapter, 1);
|
|
else
|
|
netxen_nic_set_link_parameters(adapter);
|
|
|
|
set_bit(__NX_DEV_UP, &adapter->state);
|
|
return 0;
|
|
}
|
|
|
|
/* Usage: During resume and firmware recovery module.*/
|
|
|
|
static inline int
|
|
netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
|
|
{
|
|
int err = 0;
|
|
|
|
rtnl_lock();
|
|
if (netif_running(netdev))
|
|
err = __netxen_nic_up(adapter, netdev);
|
|
rtnl_unlock();
|
|
|
|
return err;
|
|
}
|
|
|
|
/* with rtnl_lock */
|
|
static void
|
|
__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
|
|
{
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
return;
|
|
|
|
if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
|
|
return;
|
|
|
|
smp_mb();
|
|
spin_lock(&adapter->tx_clean_lock);
|
|
netif_carrier_off(netdev);
|
|
netif_tx_disable(netdev);
|
|
|
|
if (adapter->stop_port)
|
|
adapter->stop_port(adapter);
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
netxen_p3_free_mac_list(adapter);
|
|
|
|
adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
|
|
|
|
netxen_napi_disable(adapter);
|
|
|
|
netxen_release_tx_buffers(adapter);
|
|
spin_unlock(&adapter->tx_clean_lock);
|
|
}
|
|
|
|
/* Usage: During suspend and firmware recovery module */
|
|
|
|
static inline void
|
|
netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
|
|
{
|
|
rtnl_lock();
|
|
if (netif_running(netdev))
|
|
__netxen_nic_down(adapter, netdev);
|
|
rtnl_unlock();
|
|
|
|
}
|
|
|
|
static int
|
|
netxen_nic_attach(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
int err, ring;
|
|
struct nx_host_rds_ring *rds_ring;
|
|
struct nx_host_tx_ring *tx_ring;
|
|
|
|
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
|
|
return 0;
|
|
|
|
err = netxen_init_firmware(adapter);
|
|
if (err)
|
|
return err;
|
|
|
|
err = netxen_napi_add(adapter, netdev);
|
|
if (err)
|
|
return err;
|
|
|
|
err = netxen_alloc_sw_resources(adapter);
|
|
if (err) {
|
|
printk(KERN_ERR "%s: Error in setting sw resources\n",
|
|
netdev->name);
|
|
return err;
|
|
}
|
|
|
|
err = netxen_alloc_hw_resources(adapter);
|
|
if (err) {
|
|
printk(KERN_ERR "%s: Error in setting hw resources\n",
|
|
netdev->name);
|
|
goto err_out_free_sw;
|
|
}
|
|
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
|
|
tx_ring = adapter->tx_ring;
|
|
tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
|
|
crb_cmd_producer[adapter->portnum]);
|
|
tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
|
|
crb_cmd_consumer[adapter->portnum]);
|
|
|
|
tx_ring->producer = 0;
|
|
tx_ring->sw_consumer = 0;
|
|
|
|
netxen_nic_update_cmd_producer(adapter, tx_ring);
|
|
netxen_nic_update_cmd_consumer(adapter, tx_ring);
|
|
}
|
|
|
|
for (ring = 0; ring < adapter->max_rds_rings; ring++) {
|
|
rds_ring = &adapter->recv_ctx.rds_rings[ring];
|
|
netxen_post_rx_buffers(adapter, ring, rds_ring);
|
|
}
|
|
|
|
err = netxen_nic_request_irq(adapter);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
|
|
netdev->name);
|
|
goto err_out_free_rxbuf;
|
|
}
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
netxen_nic_init_coalesce_defaults(adapter);
|
|
|
|
netxen_create_sysfs_entries(adapter);
|
|
|
|
adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
|
|
return 0;
|
|
|
|
err_out_free_rxbuf:
|
|
netxen_release_rx_buffers(adapter);
|
|
netxen_free_hw_resources(adapter);
|
|
err_out_free_sw:
|
|
netxen_free_sw_resources(adapter);
|
|
return err;
|
|
}
|
|
|
|
static void
|
|
netxen_nic_detach(struct netxen_adapter *adapter)
|
|
{
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
return;
|
|
|
|
netxen_remove_sysfs_entries(adapter);
|
|
|
|
netxen_free_hw_resources(adapter);
|
|
netxen_release_rx_buffers(adapter);
|
|
netxen_nic_free_irq(adapter);
|
|
netxen_napi_del(adapter);
|
|
netxen_free_sw_resources(adapter);
|
|
|
|
adapter->is_up = 0;
|
|
}
|
|
|
|
int
|
|
netxen_nic_reset_context(struct netxen_adapter *adapter)
|
|
{
|
|
int err = 0;
|
|
struct net_device *netdev = adapter->netdev;
|
|
|
|
if (test_and_set_bit(__NX_RESETTING, &adapter->state))
|
|
return -EBUSY;
|
|
|
|
if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
|
|
|
|
netif_device_detach(netdev);
|
|
|
|
if (netif_running(netdev))
|
|
__netxen_nic_down(adapter, netdev);
|
|
|
|
netxen_nic_detach(adapter);
|
|
|
|
if (netif_running(netdev)) {
|
|
err = netxen_nic_attach(adapter);
|
|
if (!err)
|
|
err = __netxen_nic_up(adapter, netdev);
|
|
|
|
if (err)
|
|
goto done;
|
|
}
|
|
|
|
netif_device_attach(netdev);
|
|
}
|
|
|
|
done:
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
netxen_setup_netdev(struct netxen_adapter *adapter,
|
|
struct net_device *netdev)
|
|
{
|
|
int err = 0;
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
|
|
adapter->rx_csum = 1;
|
|
adapter->mc_enabled = 0;
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
|
|
adapter->max_mc_count = 38;
|
|
else
|
|
adapter->max_mc_count = 16;
|
|
|
|
netdev->netdev_ops = &netxen_netdev_ops;
|
|
netdev->watchdog_timeo = 2*HZ;
|
|
|
|
netxen_nic_change_mtu(netdev, netdev->mtu);
|
|
|
|
SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
|
|
|
|
netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
|
|
netdev->features |= (NETIF_F_GRO);
|
|
netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
|
|
netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
|
|
}
|
|
|
|
if (adapter->pci_using_dac) {
|
|
netdev->features |= NETIF_F_HIGHDMA;
|
|
netdev->vlan_features |= NETIF_F_HIGHDMA;
|
|
}
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
|
|
netdev->features |= (NETIF_F_HW_VLAN_TX);
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
|
|
netdev->features |= NETIF_F_LRO;
|
|
|
|
netdev->irq = adapter->msix_entries[0].vector;
|
|
|
|
INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
|
|
|
|
if (netxen_read_mac_addr(adapter))
|
|
dev_warn(&pdev->dev, "failed to read mac addr\n");
|
|
|
|
netif_carrier_off(netdev);
|
|
netif_stop_queue(netdev);
|
|
|
|
err = register_netdev(netdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to register net device\n");
|
|
return err;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __devinit
|
|
netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
|
{
|
|
struct net_device *netdev = NULL;
|
|
struct netxen_adapter *adapter = NULL;
|
|
int i = 0, err;
|
|
int pci_func_id = PCI_FUNC(pdev->devfn);
|
|
uint8_t revision_id;
|
|
|
|
if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
|
|
pr_warning("%s: chip revisions between 0x%x-0x%x"
|
|
"will not be enabled.\n",
|
|
module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
|
|
return -ENODEV;
|
|
}
|
|
|
|
if ((err = pci_enable_device(pdev)))
|
|
return err;
|
|
|
|
if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
|
|
err = -ENODEV;
|
|
goto err_out_disable_pdev;
|
|
}
|
|
|
|
if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
|
|
goto err_out_disable_pdev;
|
|
|
|
if (NX_IS_REVISION_P3(pdev->revision))
|
|
pci_enable_pcie_error_reporting(pdev);
|
|
|
|
pci_set_master(pdev);
|
|
|
|
netdev = alloc_etherdev(sizeof(struct netxen_adapter));
|
|
if(!netdev) {
|
|
dev_err(&pdev->dev, "failed to allocate net_device\n");
|
|
err = -ENOMEM;
|
|
goto err_out_free_res;
|
|
}
|
|
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
|
|
|
adapter = netdev_priv(netdev);
|
|
adapter->netdev = netdev;
|
|
adapter->pdev = pdev;
|
|
adapter->ahw.pci_func = pci_func_id;
|
|
|
|
revision_id = pdev->revision;
|
|
adapter->ahw.revision_id = revision_id;
|
|
|
|
rwlock_init(&adapter->ahw.crb_lock);
|
|
spin_lock_init(&adapter->ahw.mem_lock);
|
|
|
|
spin_lock_init(&adapter->tx_clean_lock);
|
|
INIT_LIST_HEAD(&adapter->mac_list);
|
|
|
|
err = netxen_setup_pci_map(adapter);
|
|
if (err)
|
|
goto err_out_free_netdev;
|
|
|
|
/* This will be reset for mezz cards */
|
|
adapter->portnum = pci_func_id;
|
|
|
|
err = netxen_nic_get_board_info(adapter);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Error getting board config info.\n");
|
|
goto err_out_iounmap;
|
|
}
|
|
|
|
/* Mezz cards have PCI function 0,2,3 enabled */
|
|
switch (adapter->ahw.board_type) {
|
|
case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
|
|
case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
|
|
if (pci_func_id >= 2)
|
|
adapter->portnum = pci_func_id - 2;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
err = netxen_start_firmware(adapter);
|
|
if (err)
|
|
goto err_out_decr_ref;
|
|
|
|
/*
|
|
* See if the firmware gave us a virtual-physical port mapping.
|
|
*/
|
|
adapter->physical_port = adapter->portnum;
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
|
|
i = NXRD32(adapter, CRB_V2P(adapter->portnum));
|
|
if (i != 0x55555555)
|
|
adapter->physical_port = i;
|
|
}
|
|
|
|
netxen_nic_clear_stats(adapter);
|
|
|
|
netxen_setup_intr(adapter);
|
|
|
|
err = netxen_setup_netdev(adapter, netdev);
|
|
if (err)
|
|
goto err_out_disable_msi;
|
|
|
|
pci_set_drvdata(pdev, adapter);
|
|
|
|
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
|
|
|
|
switch (adapter->ahw.port_type) {
|
|
case NETXEN_NIC_GBE:
|
|
dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
|
|
adapter->netdev->name);
|
|
break;
|
|
case NETXEN_NIC_XGBE:
|
|
dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
|
|
adapter->netdev->name);
|
|
break;
|
|
}
|
|
|
|
netxen_create_diag_entries(adapter);
|
|
|
|
return 0;
|
|
|
|
err_out_disable_msi:
|
|
netxen_teardown_intr(adapter);
|
|
|
|
netxen_free_dummy_dma(adapter);
|
|
|
|
err_out_decr_ref:
|
|
nx_decr_dev_ref_cnt(adapter);
|
|
|
|
err_out_iounmap:
|
|
netxen_cleanup_pci_map(adapter);
|
|
|
|
err_out_free_netdev:
|
|
free_netdev(netdev);
|
|
|
|
err_out_free_res:
|
|
pci_release_regions(pdev);
|
|
|
|
err_out_disable_pdev:
|
|
pci_set_drvdata(pdev, NULL);
|
|
pci_disable_device(pdev);
|
|
return err;
|
|
}
|
|
|
|
static void __devexit netxen_nic_remove(struct pci_dev *pdev)
|
|
{
|
|
struct netxen_adapter *adapter;
|
|
struct net_device *netdev;
|
|
|
|
adapter = pci_get_drvdata(pdev);
|
|
if (adapter == NULL)
|
|
return;
|
|
|
|
netdev = adapter->netdev;
|
|
|
|
netxen_cancel_fw_work(adapter);
|
|
|
|
unregister_netdev(netdev);
|
|
|
|
cancel_work_sync(&adapter->tx_timeout_task);
|
|
|
|
netxen_nic_detach(adapter);
|
|
|
|
nx_decr_dev_ref_cnt(adapter);
|
|
|
|
if (adapter->portnum == 0)
|
|
netxen_free_dummy_dma(adapter);
|
|
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
|
|
netxen_teardown_intr(adapter);
|
|
|
|
netxen_remove_diag_entries(adapter);
|
|
|
|
netxen_cleanup_pci_map(adapter);
|
|
|
|
netxen_release_firmware(adapter);
|
|
|
|
if (NX_IS_REVISION_P3(pdev->revision))
|
|
pci_disable_pcie_error_reporting(pdev);
|
|
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
free_netdev(netdev);
|
|
}
|
|
|
|
static void netxen_nic_detach_func(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
|
|
netif_device_detach(netdev);
|
|
|
|
netxen_cancel_fw_work(adapter);
|
|
|
|
if (netif_running(netdev))
|
|
netxen_nic_down(adapter, netdev);
|
|
|
|
cancel_work_sync(&adapter->tx_timeout_task);
|
|
|
|
netxen_nic_detach(adapter);
|
|
|
|
if (adapter->portnum == 0)
|
|
netxen_free_dummy_dma(adapter);
|
|
|
|
nx_decr_dev_ref_cnt(adapter);
|
|
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
}
|
|
|
|
static int netxen_nic_attach_func(struct pci_dev *pdev)
|
|
{
|
|
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
|
struct net_device *netdev = adapter->netdev;
|
|
int err;
|
|
|
|
err = pci_enable_device(pdev);
|
|
if (err)
|
|
return err;
|
|
|
|
pci_set_power_state(pdev, PCI_D0);
|
|
pci_set_master(pdev);
|
|
pci_restore_state(pdev);
|
|
|
|
adapter->ahw.crb_win = -1;
|
|
adapter->ahw.ocm_win = -1;
|
|
|
|
err = netxen_start_firmware(adapter);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "failed to start firmware\n");
|
|
return err;
|
|
}
|
|
|
|
if (netif_running(netdev)) {
|
|
err = netxen_nic_attach(adapter);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
err = netxen_nic_up(adapter, netdev);
|
|
if (err)
|
|
goto err_out_detach;
|
|
|
|
netxen_config_indev_addr(netdev, NETDEV_UP);
|
|
}
|
|
|
|
netif_device_attach(netdev);
|
|
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
|
|
return 0;
|
|
|
|
err_out_detach:
|
|
netxen_nic_detach(adapter);
|
|
err_out:
|
|
nx_decr_dev_ref_cnt(adapter);
|
|
return err;
|
|
}
|
|
|
|
static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
|
|
pci_channel_state_t state)
|
|
{
|
|
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
|
|
|
if (state == pci_channel_io_perm_failure)
|
|
return PCI_ERS_RESULT_DISCONNECT;
|
|
|
|
if (nx_dev_request_aer(adapter))
|
|
return PCI_ERS_RESULT_RECOVERED;
|
|
|
|
netxen_nic_detach_func(adapter);
|
|
|
|
pci_disable_device(pdev);
|
|
|
|
return PCI_ERS_RESULT_NEED_RESET;
|
|
}
|
|
|
|
static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
|
|
{
|
|
int err = 0;
|
|
|
|
err = netxen_nic_attach_func(pdev);
|
|
|
|
return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
|
|
}
|
|
|
|
static void netxen_io_resume(struct pci_dev *pdev)
|
|
{
|
|
pci_cleanup_aer_uncorrect_error_status(pdev);
|
|
}
|
|
|
|
static void netxen_nic_shutdown(struct pci_dev *pdev)
|
|
{
|
|
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
|
|
|
netxen_nic_detach_func(adapter);
|
|
|
|
if (pci_save_state(pdev))
|
|
return;
|
|
|
|
if (netxen_nic_wol_supported(adapter)) {
|
|
pci_enable_wake(pdev, PCI_D3cold, 1);
|
|
pci_enable_wake(pdev, PCI_D3hot, 1);
|
|
}
|
|
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
#ifdef CONFIG_PM
|
|
static int
|
|
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
|
|
{
|
|
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
|
int retval;
|
|
|
|
netxen_nic_detach_func(adapter);
|
|
|
|
retval = pci_save_state(pdev);
|
|
if (retval)
|
|
return retval;
|
|
|
|
if (netxen_nic_wol_supported(adapter)) {
|
|
pci_enable_wake(pdev, PCI_D3cold, 1);
|
|
pci_enable_wake(pdev, PCI_D3hot, 1);
|
|
}
|
|
|
|
pci_disable_device(pdev);
|
|
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
netxen_nic_resume(struct pci_dev *pdev)
|
|
{
|
|
return netxen_nic_attach_func(pdev);
|
|
}
|
|
#endif
|
|
|
|
static int netxen_nic_open(struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
int err = 0;
|
|
|
|
if (adapter->driver_mismatch)
|
|
return -EIO;
|
|
|
|
err = netxen_nic_attach(adapter);
|
|
if (err)
|
|
return err;
|
|
|
|
err = __netxen_nic_up(adapter, netdev);
|
|
if (err)
|
|
goto err_out;
|
|
|
|
netif_start_queue(netdev);
|
|
|
|
return 0;
|
|
|
|
err_out:
|
|
netxen_nic_detach(adapter);
|
|
return err;
|
|
}
|
|
|
|
/*
|
|
* netxen_nic_close - Disables a network interface entry point
|
|
*/
|
|
static int netxen_nic_close(struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
|
|
__netxen_nic_down(adapter, netdev);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
netxen_tso_check(struct net_device *netdev,
|
|
struct nx_host_tx_ring *tx_ring,
|
|
struct cmd_desc_type0 *first_desc,
|
|
struct sk_buff *skb)
|
|
{
|
|
u8 opcode = TX_ETHER_PKT;
|
|
__be16 protocol = skb->protocol;
|
|
u16 flags = 0, vid = 0;
|
|
u32 producer;
|
|
int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
|
|
struct cmd_desc_type0 *hwdesc;
|
|
struct vlan_ethhdr *vh;
|
|
|
|
if (protocol == cpu_to_be16(ETH_P_8021Q)) {
|
|
|
|
vh = (struct vlan_ethhdr *)skb->data;
|
|
protocol = vh->h_vlan_encapsulated_proto;
|
|
flags = FLAGS_VLAN_TAGGED;
|
|
|
|
} else if (vlan_tx_tag_present(skb)) {
|
|
|
|
flags = FLAGS_VLAN_OOB;
|
|
vid = vlan_tx_tag_get(skb);
|
|
netxen_set_tx_vlan_tci(first_desc, vid);
|
|
vlan_oob = 1;
|
|
}
|
|
|
|
if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
|
|
skb_shinfo(skb)->gso_size > 0) {
|
|
|
|
hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
|
|
|
|
first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
|
|
first_desc->total_hdr_length = hdr_len;
|
|
if (vlan_oob) {
|
|
first_desc->total_hdr_length += VLAN_HLEN;
|
|
first_desc->tcp_hdr_offset = VLAN_HLEN;
|
|
first_desc->ip_hdr_offset = VLAN_HLEN;
|
|
/* Only in case of TSO on vlan device */
|
|
flags |= FLAGS_VLAN_TAGGED;
|
|
}
|
|
|
|
opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
|
|
TX_TCP_LSO6 : TX_TCP_LSO;
|
|
tso = 1;
|
|
|
|
} else if (skb->ip_summed == CHECKSUM_PARTIAL) {
|
|
u8 l4proto;
|
|
|
|
if (protocol == cpu_to_be16(ETH_P_IP)) {
|
|
l4proto = ip_hdr(skb)->protocol;
|
|
|
|
if (l4proto == IPPROTO_TCP)
|
|
opcode = TX_TCP_PKT;
|
|
else if(l4proto == IPPROTO_UDP)
|
|
opcode = TX_UDP_PKT;
|
|
} else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
|
|
l4proto = ipv6_hdr(skb)->nexthdr;
|
|
|
|
if (l4proto == IPPROTO_TCP)
|
|
opcode = TX_TCPV6_PKT;
|
|
else if(l4proto == IPPROTO_UDP)
|
|
opcode = TX_UDPV6_PKT;
|
|
}
|
|
}
|
|
|
|
first_desc->tcp_hdr_offset += skb_transport_offset(skb);
|
|
first_desc->ip_hdr_offset += skb_network_offset(skb);
|
|
netxen_set_tx_flags_opcode(first_desc, flags, opcode);
|
|
|
|
if (!tso)
|
|
return;
|
|
|
|
/* For LSO, we need to copy the MAC/IP/TCP headers into
|
|
* the descriptor ring
|
|
*/
|
|
producer = tx_ring->producer;
|
|
copied = 0;
|
|
offset = 2;
|
|
|
|
if (vlan_oob) {
|
|
/* Create a TSO vlan header template for firmware */
|
|
|
|
hwdesc = &tx_ring->desc_head[producer];
|
|
tx_ring->cmd_buf_arr[producer].skb = NULL;
|
|
|
|
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
|
|
hdr_len + VLAN_HLEN);
|
|
|
|
vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
|
|
skb_copy_from_linear_data(skb, vh, 12);
|
|
vh->h_vlan_proto = htons(ETH_P_8021Q);
|
|
vh->h_vlan_TCI = htons(vid);
|
|
skb_copy_from_linear_data_offset(skb, 12,
|
|
(char *)vh + 16, copy_len - 16);
|
|
|
|
copied = copy_len - VLAN_HLEN;
|
|
offset = 0;
|
|
|
|
producer = get_next_index(producer, tx_ring->num_desc);
|
|
}
|
|
|
|
while (copied < hdr_len) {
|
|
|
|
copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
|
|
(hdr_len - copied));
|
|
|
|
hwdesc = &tx_ring->desc_head[producer];
|
|
tx_ring->cmd_buf_arr[producer].skb = NULL;
|
|
|
|
skb_copy_from_linear_data_offset(skb, copied,
|
|
(char *)hwdesc + offset, copy_len);
|
|
|
|
copied += copy_len;
|
|
offset = 0;
|
|
|
|
producer = get_next_index(producer, tx_ring->num_desc);
|
|
}
|
|
|
|
tx_ring->producer = producer;
|
|
barrier();
|
|
}
|
|
|
|
static int
|
|
netxen_map_tx_skb(struct pci_dev *pdev,
|
|
struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
|
|
{
|
|
struct netxen_skb_frag *nf;
|
|
struct skb_frag_struct *frag;
|
|
int i, nr_frags;
|
|
dma_addr_t map;
|
|
|
|
nr_frags = skb_shinfo(skb)->nr_frags;
|
|
nf = &pbuf->frag_array[0];
|
|
|
|
map = pci_map_single(pdev, skb->data,
|
|
skb_headlen(skb), PCI_DMA_TODEVICE);
|
|
if (pci_dma_mapping_error(pdev, map))
|
|
goto out_err;
|
|
|
|
nf->dma = map;
|
|
nf->length = skb_headlen(skb);
|
|
|
|
for (i = 0; i < nr_frags; i++) {
|
|
frag = &skb_shinfo(skb)->frags[i];
|
|
nf = &pbuf->frag_array[i+1];
|
|
|
|
map = pci_map_page(pdev, frag->page, frag->page_offset,
|
|
frag->size, PCI_DMA_TODEVICE);
|
|
if (pci_dma_mapping_error(pdev, map))
|
|
goto unwind;
|
|
|
|
nf->dma = map;
|
|
nf->length = frag->size;
|
|
}
|
|
|
|
return 0;
|
|
|
|
unwind:
|
|
while (--i >= 0) {
|
|
nf = &pbuf->frag_array[i+1];
|
|
pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
|
|
}
|
|
|
|
nf = &pbuf->frag_array[0];
|
|
pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
|
|
|
|
out_err:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static inline void
|
|
netxen_clear_cmddesc(u64 *desc)
|
|
{
|
|
desc[0] = 0ULL;
|
|
desc[2] = 0ULL;
|
|
}
|
|
|
|
static netdev_tx_t
|
|
netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
|
|
struct netxen_cmd_buffer *pbuf;
|
|
struct netxen_skb_frag *buffrag;
|
|
struct cmd_desc_type0 *hwdesc, *first_desc;
|
|
struct pci_dev *pdev;
|
|
int i, k;
|
|
|
|
u32 producer;
|
|
int frag_count, no_of_desc;
|
|
u32 num_txd = tx_ring->num_desc;
|
|
|
|
frag_count = skb_shinfo(skb)->nr_frags + 1;
|
|
|
|
/* 4 fragments per cmd des */
|
|
no_of_desc = (frag_count + 3) >> 2;
|
|
|
|
if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
|
|
netif_stop_queue(netdev);
|
|
return NETDEV_TX_BUSY;
|
|
}
|
|
|
|
producer = tx_ring->producer;
|
|
pbuf = &tx_ring->cmd_buf_arr[producer];
|
|
|
|
pdev = adapter->pdev;
|
|
|
|
if (netxen_map_tx_skb(pdev, skb, pbuf))
|
|
goto drop_packet;
|
|
|
|
pbuf->skb = skb;
|
|
pbuf->frag_count = frag_count;
|
|
|
|
first_desc = hwdesc = &tx_ring->desc_head[producer];
|
|
netxen_clear_cmddesc((u64 *)hwdesc);
|
|
|
|
netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
|
|
netxen_set_tx_port(first_desc, adapter->portnum);
|
|
|
|
for (i = 0; i < frag_count; i++) {
|
|
|
|
k = i % 4;
|
|
|
|
if ((k == 0) && (i > 0)) {
|
|
/* move to next desc.*/
|
|
producer = get_next_index(producer, num_txd);
|
|
hwdesc = &tx_ring->desc_head[producer];
|
|
netxen_clear_cmddesc((u64 *)hwdesc);
|
|
tx_ring->cmd_buf_arr[producer].skb = NULL;
|
|
}
|
|
|
|
buffrag = &pbuf->frag_array[i];
|
|
|
|
hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
|
|
switch (k) {
|
|
case 0:
|
|
hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
|
|
break;
|
|
case 1:
|
|
hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
|
|
break;
|
|
case 2:
|
|
hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
|
|
break;
|
|
case 3:
|
|
hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
|
|
break;
|
|
}
|
|
}
|
|
|
|
tx_ring->producer = get_next_index(producer, num_txd);
|
|
|
|
netxen_tso_check(netdev, tx_ring, first_desc, skb);
|
|
|
|
netxen_nic_update_cmd_producer(adapter, tx_ring);
|
|
|
|
adapter->stats.txbytes += skb->len;
|
|
adapter->stats.xmitcalled++;
|
|
|
|
return NETDEV_TX_OK;
|
|
|
|
drop_packet:
|
|
adapter->stats.txdropped++;
|
|
dev_kfree_skb_any(skb);
|
|
return NETDEV_TX_OK;
|
|
}
|
|
|
|
static int netxen_nic_check_temp(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
uint32_t temp, temp_state, temp_val;
|
|
int rv = 0;
|
|
|
|
temp = NXRD32(adapter, CRB_TEMP_STATE);
|
|
|
|
temp_state = nx_get_temp_state(temp);
|
|
temp_val = nx_get_temp_val(temp);
|
|
|
|
if (temp_state == NX_TEMP_PANIC) {
|
|
printk(KERN_ALERT
|
|
"%s: Device temperature %d degrees C exceeds"
|
|
" maximum allowed. Hardware has been shut down.\n",
|
|
netdev->name, temp_val);
|
|
rv = 1;
|
|
} else if (temp_state == NX_TEMP_WARN) {
|
|
if (adapter->temp == NX_TEMP_NORMAL) {
|
|
printk(KERN_ALERT
|
|
"%s: Device temperature %d degrees C "
|
|
"exceeds operating range."
|
|
" Immediate action needed.\n",
|
|
netdev->name, temp_val);
|
|
}
|
|
} else {
|
|
if (adapter->temp == NX_TEMP_WARN) {
|
|
printk(KERN_INFO
|
|
"%s: Device temperature is now %d degrees C"
|
|
" in normal range.\n", netdev->name,
|
|
temp_val);
|
|
}
|
|
}
|
|
adapter->temp = temp_state;
|
|
return rv;
|
|
}
|
|
|
|
void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
|
|
if (adapter->ahw.linkup && !linkup) {
|
|
printk(KERN_INFO "%s: %s NIC Link is down\n",
|
|
netxen_nic_driver_name, netdev->name);
|
|
adapter->ahw.linkup = 0;
|
|
if (netif_running(netdev)) {
|
|
netif_carrier_off(netdev);
|
|
netif_stop_queue(netdev);
|
|
}
|
|
adapter->link_changed = !adapter->has_link_events;
|
|
} else if (!adapter->ahw.linkup && linkup) {
|
|
printk(KERN_INFO "%s: %s NIC Link is up\n",
|
|
netxen_nic_driver_name, netdev->name);
|
|
adapter->ahw.linkup = 1;
|
|
if (netif_running(netdev)) {
|
|
netif_carrier_on(netdev);
|
|
netif_wake_queue(netdev);
|
|
}
|
|
adapter->link_changed = !adapter->has_link_events;
|
|
}
|
|
}
|
|
|
|
static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
|
|
{
|
|
u32 val, port, linkup;
|
|
|
|
port = adapter->physical_port;
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
val = NXRD32(adapter, CRB_XG_STATE_P3);
|
|
val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
|
|
linkup = (val == XG_LINK_UP_P3);
|
|
} else {
|
|
val = NXRD32(adapter, CRB_XG_STATE);
|
|
if (adapter->ahw.port_type == NETXEN_NIC_GBE)
|
|
linkup = (val >> port) & 1;
|
|
else {
|
|
val = (val >> port*8) & 0xff;
|
|
linkup = (val == XG_LINK_UP);
|
|
}
|
|
}
|
|
|
|
netxen_advert_link_change(adapter, linkup);
|
|
}
|
|
|
|
static void netxen_tx_timeout(struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
|
|
if (test_bit(__NX_RESETTING, &adapter->state))
|
|
return;
|
|
|
|
dev_err(&netdev->dev, "transmit timeout, resetting.\n");
|
|
schedule_work(&adapter->tx_timeout_task);
|
|
}
|
|
|
|
static void netxen_tx_timeout_task(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter =
|
|
container_of(work, struct netxen_adapter, tx_timeout_task);
|
|
|
|
if (!netif_running(adapter->netdev))
|
|
return;
|
|
|
|
if (test_and_set_bit(__NX_RESETTING, &adapter->state))
|
|
return;
|
|
|
|
if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
|
|
goto request_reset;
|
|
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
|
|
/* try to scrub interrupt */
|
|
netxen_napi_disable(adapter);
|
|
|
|
adapter->netdev->trans_start = jiffies;
|
|
|
|
netxen_napi_enable(adapter);
|
|
|
|
netif_wake_queue(adapter->netdev);
|
|
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
|
|
} else {
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
if (!netxen_nic_reset_context(adapter)) {
|
|
adapter->netdev->trans_start = jiffies;
|
|
return;
|
|
}
|
|
|
|
/* context reset failed, fall through for fw reset */
|
|
}
|
|
|
|
request_reset:
|
|
adapter->need_fw_reset = 1;
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
}
|
|
|
|
struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
struct net_device_stats *stats = &netdev->stats;
|
|
|
|
memset(stats, 0, sizeof(*stats));
|
|
|
|
stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
|
|
stats->tx_packets = adapter->stats.xmitfinished;
|
|
stats->rx_bytes = adapter->stats.rxbytes;
|
|
stats->tx_bytes = adapter->stats.txbytes;
|
|
stats->rx_dropped = adapter->stats.rxdropped;
|
|
stats->tx_dropped = adapter->stats.txdropped;
|
|
|
|
return stats;
|
|
}
|
|
|
|
static irqreturn_t netxen_intr(int irq, void *data)
|
|
{
|
|
struct nx_host_sds_ring *sds_ring = data;
|
|
struct netxen_adapter *adapter = sds_ring->adapter;
|
|
u32 status = 0;
|
|
|
|
status = readl(adapter->isr_int_vec);
|
|
|
|
if (!(status & adapter->int_vec_bit))
|
|
return IRQ_NONE;
|
|
|
|
if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
|
|
/* check interrupt state machine, to be sure */
|
|
status = readl(adapter->crb_int_state_reg);
|
|
if (!ISR_LEGACY_INT_TRIGGERED(status))
|
|
return IRQ_NONE;
|
|
|
|
} else {
|
|
unsigned long our_int = 0;
|
|
|
|
our_int = readl(adapter->crb_int_state_reg);
|
|
|
|
/* not our interrupt */
|
|
if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
|
|
return IRQ_NONE;
|
|
|
|
/* claim interrupt */
|
|
writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
|
|
|
|
/* clear interrupt */
|
|
netxen_nic_disable_int(sds_ring);
|
|
}
|
|
|
|
writel(0xffffffff, adapter->tgt_status_reg);
|
|
/* read twice to ensure write is flushed */
|
|
readl(adapter->isr_int_vec);
|
|
readl(adapter->isr_int_vec);
|
|
|
|
napi_schedule(&sds_ring->napi);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t netxen_msi_intr(int irq, void *data)
|
|
{
|
|
struct nx_host_sds_ring *sds_ring = data;
|
|
struct netxen_adapter *adapter = sds_ring->adapter;
|
|
|
|
/* clear interrupt */
|
|
writel(0xffffffff, adapter->tgt_status_reg);
|
|
|
|
napi_schedule(&sds_ring->napi);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static irqreturn_t netxen_msix_intr(int irq, void *data)
|
|
{
|
|
struct nx_host_sds_ring *sds_ring = data;
|
|
|
|
napi_schedule(&sds_ring->napi);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int netxen_nic_poll(struct napi_struct *napi, int budget)
|
|
{
|
|
struct nx_host_sds_ring *sds_ring =
|
|
container_of(napi, struct nx_host_sds_ring, napi);
|
|
|
|
struct netxen_adapter *adapter = sds_ring->adapter;
|
|
|
|
int tx_complete;
|
|
int work_done;
|
|
|
|
tx_complete = netxen_process_cmd_ring(adapter);
|
|
|
|
work_done = netxen_process_rcv_ring(sds_ring, budget);
|
|
|
|
if ((work_done < budget) && tx_complete) {
|
|
napi_complete(&sds_ring->napi);
|
|
if (test_bit(__NX_DEV_UP, &adapter->state))
|
|
netxen_nic_enable_int(sds_ring);
|
|
}
|
|
|
|
return work_done;
|
|
}
|
|
|
|
#ifdef CONFIG_NET_POLL_CONTROLLER
|
|
static void netxen_nic_poll_controller(struct net_device *netdev)
|
|
{
|
|
struct netxen_adapter *adapter = netdev_priv(netdev);
|
|
disable_irq(adapter->irq);
|
|
netxen_intr(adapter->irq, adapter);
|
|
enable_irq(adapter->irq);
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
|
|
{
|
|
int count;
|
|
if (netxen_api_lock(adapter))
|
|
return -EIO;
|
|
|
|
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
|
|
|
|
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
|
|
|
|
netxen_api_unlock(adapter);
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
|
|
{
|
|
int count;
|
|
if (netxen_api_lock(adapter))
|
|
return -EIO;
|
|
|
|
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
|
|
WARN_ON(count == 0);
|
|
|
|
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
|
|
|
|
if (count == 0)
|
|
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
|
|
|
|
netxen_api_unlock(adapter);
|
|
return count;
|
|
}
|
|
|
|
static int
|
|
nx_dev_request_aer(struct netxen_adapter *adapter)
|
|
{
|
|
u32 state;
|
|
int ret = -EINVAL;
|
|
|
|
if (netxen_api_lock(adapter))
|
|
return ret;
|
|
|
|
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
|
|
|
if (state == NX_DEV_NEED_AER)
|
|
ret = 0;
|
|
else if (state == NX_DEV_READY) {
|
|
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
|
|
ret = 0;
|
|
}
|
|
|
|
netxen_api_unlock(adapter);
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
nx_dev_request_reset(struct netxen_adapter *adapter)
|
|
{
|
|
u32 state;
|
|
int ret = -EINVAL;
|
|
|
|
if (netxen_api_lock(adapter))
|
|
return ret;
|
|
|
|
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
|
|
|
if (state == NX_DEV_NEED_RESET)
|
|
ret = 0;
|
|
else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
|
|
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
|
|
ret = 0;
|
|
}
|
|
|
|
netxen_api_unlock(adapter);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int
|
|
netxen_can_start_firmware(struct netxen_adapter *adapter)
|
|
{
|
|
int count;
|
|
int can_start = 0;
|
|
|
|
if (netxen_api_lock(adapter))
|
|
return 0;
|
|
|
|
count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
|
|
|
|
if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
|
|
count = 0;
|
|
|
|
if (count == 0) {
|
|
can_start = 1;
|
|
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
|
|
}
|
|
|
|
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
|
|
|
|
netxen_api_unlock(adapter);
|
|
|
|
return can_start;
|
|
}
|
|
|
|
static void
|
|
netxen_schedule_work(struct netxen_adapter *adapter,
|
|
work_func_t func, int delay)
|
|
{
|
|
INIT_DELAYED_WORK(&adapter->fw_work, func);
|
|
schedule_delayed_work(&adapter->fw_work, delay);
|
|
}
|
|
|
|
static void
|
|
netxen_cancel_fw_work(struct netxen_adapter *adapter)
|
|
{
|
|
while (test_and_set_bit(__NX_RESETTING, &adapter->state))
|
|
msleep(10);
|
|
|
|
cancel_delayed_work_sync(&adapter->fw_work);
|
|
}
|
|
|
|
static void
|
|
netxen_attach_work(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter = container_of(work,
|
|
struct netxen_adapter, fw_work.work);
|
|
struct net_device *netdev = adapter->netdev;
|
|
int err = 0;
|
|
|
|
if (netif_running(netdev)) {
|
|
err = netxen_nic_attach(adapter);
|
|
if (err)
|
|
goto done;
|
|
|
|
err = netxen_nic_up(adapter, netdev);
|
|
if (err) {
|
|
netxen_nic_detach(adapter);
|
|
goto done;
|
|
}
|
|
|
|
netxen_config_indev_addr(netdev, NETDEV_UP);
|
|
}
|
|
|
|
netif_device_attach(netdev);
|
|
|
|
done:
|
|
adapter->fw_fail_cnt = 0;
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
|
|
}
|
|
|
|
static void
|
|
netxen_fwinit_work(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter = container_of(work,
|
|
struct netxen_adapter, fw_work.work);
|
|
int dev_state;
|
|
|
|
dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
|
|
|
switch (dev_state) {
|
|
case NX_DEV_COLD:
|
|
case NX_DEV_READY:
|
|
if (!netxen_start_firmware(adapter)) {
|
|
netxen_schedule_work(adapter, netxen_attach_work, 0);
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case NX_DEV_INITALIZING:
|
|
if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
|
|
netxen_schedule_work(adapter,
|
|
netxen_fwinit_work, 2 * FW_POLL_DELAY);
|
|
return;
|
|
}
|
|
|
|
case NX_DEV_FAILED:
|
|
default:
|
|
nx_incr_dev_ref_cnt(adapter);
|
|
break;
|
|
}
|
|
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
}
|
|
|
|
static void
|
|
netxen_detach_work(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter = container_of(work,
|
|
struct netxen_adapter, fw_work.work);
|
|
struct net_device *netdev = adapter->netdev;
|
|
int ref_cnt, delay;
|
|
u32 status;
|
|
|
|
netif_device_detach(netdev);
|
|
|
|
netxen_nic_down(adapter, netdev);
|
|
|
|
netxen_nic_detach(adapter);
|
|
|
|
status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
|
|
|
|
if (status & NX_RCODE_FATAL_ERROR)
|
|
goto err_ret;
|
|
|
|
if (adapter->temp == NX_TEMP_PANIC)
|
|
goto err_ret;
|
|
|
|
ref_cnt = nx_decr_dev_ref_cnt(adapter);
|
|
|
|
delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
|
|
|
|
adapter->fw_wait_cnt = 0;
|
|
netxen_schedule_work(adapter, netxen_fwinit_work, delay);
|
|
|
|
return;
|
|
|
|
err_ret:
|
|
clear_bit(__NX_RESETTING, &adapter->state);
|
|
}
|
|
|
|
static int
|
|
netxen_check_health(struct netxen_adapter *adapter)
|
|
{
|
|
u32 state, heartbit;
|
|
struct net_device *netdev = adapter->netdev;
|
|
|
|
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
|
if (state == NX_DEV_NEED_AER)
|
|
return 0;
|
|
|
|
if (netxen_nic_check_temp(adapter))
|
|
goto detach;
|
|
|
|
if (adapter->need_fw_reset) {
|
|
if (nx_dev_request_reset(adapter))
|
|
return 0;
|
|
goto detach;
|
|
}
|
|
|
|
/* NX_DEV_NEED_RESET, this state can be marked in two cases
|
|
* 1. Tx timeout 2. Fw hang
|
|
* Send request to destroy context in case of tx timeout only
|
|
* and doesn't required in case of Fw hang
|
|
*/
|
|
if (state == NX_DEV_NEED_RESET) {
|
|
adapter->need_fw_reset = 1;
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
|
goto detach;
|
|
}
|
|
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
|
return 0;
|
|
|
|
heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
|
|
if (heartbit != adapter->heartbit) {
|
|
adapter->heartbit = heartbit;
|
|
adapter->fw_fail_cnt = 0;
|
|
if (adapter->need_fw_reset)
|
|
goto detach;
|
|
return 0;
|
|
}
|
|
|
|
if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
|
|
return 0;
|
|
|
|
if (nx_dev_request_reset(adapter))
|
|
return 0;
|
|
|
|
clear_bit(__NX_FW_ATTACHED, &adapter->state);
|
|
|
|
dev_info(&netdev->dev, "firmware hang detected\n");
|
|
|
|
detach:
|
|
if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
|
|
!test_and_set_bit(__NX_RESETTING, &adapter->state))
|
|
netxen_schedule_work(adapter, netxen_detach_work, 0);
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
netxen_fw_poll_work(struct work_struct *work)
|
|
{
|
|
struct netxen_adapter *adapter = container_of(work,
|
|
struct netxen_adapter, fw_work.work);
|
|
|
|
if (test_bit(__NX_RESETTING, &adapter->state))
|
|
goto reschedule;
|
|
|
|
if (test_bit(__NX_DEV_UP, &adapter->state)) {
|
|
if (!adapter->has_link_events) {
|
|
|
|
netxen_nic_handle_phy_intr(adapter);
|
|
|
|
if (adapter->link_changed)
|
|
netxen_nic_set_link_parameters(adapter);
|
|
}
|
|
}
|
|
|
|
if (netxen_check_health(adapter))
|
|
return;
|
|
|
|
reschedule:
|
|
netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_store_bridged_mode(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t len)
|
|
{
|
|
struct net_device *net = to_net_dev(dev);
|
|
struct netxen_adapter *adapter = netdev_priv(net);
|
|
unsigned long new;
|
|
int ret = -EINVAL;
|
|
|
|
if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
|
|
goto err_out;
|
|
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
goto err_out;
|
|
|
|
if (strict_strtoul(buf, 2, &new))
|
|
goto err_out;
|
|
|
|
if (!netxen_config_bridged_mode(adapter, !!new))
|
|
ret = len;
|
|
|
|
err_out:
|
|
return ret;
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_show_bridged_mode(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct net_device *net = to_net_dev(dev);
|
|
struct netxen_adapter *adapter;
|
|
int bridged_mode = 0;
|
|
|
|
adapter = netdev_priv(net);
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
|
|
bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
|
|
|
|
return sprintf(buf, "%d\n", bridged_mode);
|
|
}
|
|
|
|
static struct device_attribute dev_attr_bridged_mode = {
|
|
.attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
|
|
.show = netxen_show_bridged_mode,
|
|
.store = netxen_store_bridged_mode,
|
|
};
|
|
|
|
static ssize_t
|
|
netxen_store_diag_mode(struct device *dev,
|
|
struct device_attribute *attr, const char *buf, size_t len)
|
|
{
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
unsigned long new;
|
|
|
|
if (strict_strtoul(buf, 2, &new))
|
|
return -EINVAL;
|
|
|
|
if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
|
|
adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
|
|
|
|
return len;
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_show_diag_mode(struct device *dev,
|
|
struct device_attribute *attr, char *buf)
|
|
{
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
|
|
return sprintf(buf, "%d\n",
|
|
!!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
|
|
}
|
|
|
|
static struct device_attribute dev_attr_diag_mode = {
|
|
.attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
|
|
.show = netxen_show_diag_mode,
|
|
.store = netxen_store_diag_mode,
|
|
};
|
|
|
|
static int
|
|
netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
|
|
loff_t offset, size_t size)
|
|
{
|
|
if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
|
|
return -EIO;
|
|
|
|
if ((size != 4) || (offset & 0x3))
|
|
return -EINVAL;
|
|
|
|
if (offset < NETXEN_PCI_CRBSPACE)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
|
|
char *buf, loff_t offset, size_t size)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
u32 data;
|
|
int ret;
|
|
|
|
ret = netxen_sysfs_validate_crb(adapter, offset, size);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
data = NXRD32(adapter, offset);
|
|
memcpy(buf, &data, size);
|
|
return size;
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
|
|
char *buf, loff_t offset, size_t size)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
u32 data;
|
|
int ret;
|
|
|
|
ret = netxen_sysfs_validate_crb(adapter, offset, size);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
memcpy(&data, buf, size);
|
|
NXWR32(adapter, offset, data);
|
|
return size;
|
|
}
|
|
|
|
static int
|
|
netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
|
|
loff_t offset, size_t size)
|
|
{
|
|
if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
|
|
return -EIO;
|
|
|
|
if ((size != 8) || (offset & 0x7))
|
|
return -EIO;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
|
|
char *buf, loff_t offset, size_t size)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
u64 data;
|
|
int ret;
|
|
|
|
ret = netxen_sysfs_validate_mem(adapter, offset, size);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
if (adapter->pci_mem_read(adapter, offset, &data))
|
|
return -EIO;
|
|
|
|
memcpy(buf, &data, size);
|
|
|
|
return size;
|
|
}
|
|
|
|
ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
|
|
struct bin_attribute *attr, char *buf,
|
|
loff_t offset, size_t size)
|
|
{
|
|
struct device *dev = container_of(kobj, struct device, kobj);
|
|
struct netxen_adapter *adapter = dev_get_drvdata(dev);
|
|
u64 data;
|
|
int ret;
|
|
|
|
ret = netxen_sysfs_validate_mem(adapter, offset, size);
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
memcpy(&data, buf, size);
|
|
|
|
if (adapter->pci_mem_write(adapter, offset, data))
|
|
return -EIO;
|
|
|
|
return size;
|
|
}
|
|
|
|
|
|
static struct bin_attribute bin_attr_crb = {
|
|
.attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
|
|
.size = 0,
|
|
.read = netxen_sysfs_read_crb,
|
|
.write = netxen_sysfs_write_crb,
|
|
};
|
|
|
|
static struct bin_attribute bin_attr_mem = {
|
|
.attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
|
|
.size = 0,
|
|
.read = netxen_sysfs_read_mem,
|
|
.write = netxen_sysfs_write_mem,
|
|
};
|
|
|
|
|
|
static void
|
|
netxen_create_sysfs_entries(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
struct device *dev = &netdev->dev;
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
|
|
/* bridged_mode control */
|
|
if (device_create_file(dev, &dev_attr_bridged_mode)) {
|
|
dev_warn(&netdev->dev,
|
|
"failed to create bridged_mode sysfs entry\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
|
|
{
|
|
struct net_device *netdev = adapter->netdev;
|
|
struct device *dev = &netdev->dev;
|
|
|
|
if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
|
|
device_remove_file(dev, &dev_attr_bridged_mode);
|
|
}
|
|
|
|
static void
|
|
netxen_create_diag_entries(struct netxen_adapter *adapter)
|
|
{
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
struct device *dev;
|
|
|
|
dev = &pdev->dev;
|
|
if (device_create_file(dev, &dev_attr_diag_mode))
|
|
dev_info(dev, "failed to create diag_mode sysfs entry\n");
|
|
if (device_create_bin_file(dev, &bin_attr_crb))
|
|
dev_info(dev, "failed to create crb sysfs entry\n");
|
|
if (device_create_bin_file(dev, &bin_attr_mem))
|
|
dev_info(dev, "failed to create mem sysfs entry\n");
|
|
}
|
|
|
|
|
|
static void
|
|
netxen_remove_diag_entries(struct netxen_adapter *adapter)
|
|
{
|
|
struct pci_dev *pdev = adapter->pdev;
|
|
struct device *dev = &pdev->dev;
|
|
|
|
device_remove_file(dev, &dev_attr_diag_mode);
|
|
device_remove_bin_file(dev, &bin_attr_crb);
|
|
device_remove_bin_file(dev, &bin_attr_mem);
|
|
}
|
|
|
|
#ifdef CONFIG_INET
|
|
|
|
#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
|
|
|
|
static int
|
|
netxen_destip_supported(struct netxen_adapter *adapter)
|
|
{
|
|
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
|
return 0;
|
|
|
|
if (adapter->ahw.cut_through)
|
|
return 0;
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
netxen_config_indev_addr(struct net_device *dev, unsigned long event)
|
|
{
|
|
struct in_device *indev;
|
|
struct netxen_adapter *adapter = netdev_priv(dev);
|
|
|
|
if (!netxen_destip_supported(adapter))
|
|
return;
|
|
|
|
indev = in_dev_get(dev);
|
|
if (!indev)
|
|
return;
|
|
|
|
for_ifa(indev) {
|
|
switch (event) {
|
|
case NETDEV_UP:
|
|
netxen_config_ipaddr(adapter,
|
|
ifa->ifa_address, NX_IP_UP);
|
|
break;
|
|
case NETDEV_DOWN:
|
|
netxen_config_ipaddr(adapter,
|
|
ifa->ifa_address, NX_IP_DOWN);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} endfor_ifa(indev);
|
|
|
|
in_dev_put(indev);
|
|
return;
|
|
}
|
|
|
|
static int netxen_netdev_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct netxen_adapter *adapter;
|
|
struct net_device *dev = (struct net_device *)ptr;
|
|
|
|
recheck:
|
|
if (dev == NULL)
|
|
goto done;
|
|
|
|
if (dev->priv_flags & IFF_802_1Q_VLAN) {
|
|
dev = vlan_dev_real_dev(dev);
|
|
goto recheck;
|
|
}
|
|
|
|
if (!is_netxen_netdev(dev))
|
|
goto done;
|
|
|
|
adapter = netdev_priv(dev);
|
|
|
|
if (!adapter)
|
|
goto done;
|
|
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
goto done;
|
|
|
|
netxen_config_indev_addr(dev, event);
|
|
done:
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static int
|
|
netxen_inetaddr_event(struct notifier_block *this,
|
|
unsigned long event, void *ptr)
|
|
{
|
|
struct netxen_adapter *adapter;
|
|
struct net_device *dev;
|
|
|
|
struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
|
|
|
|
dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
|
|
|
|
recheck:
|
|
if (dev == NULL || !netif_running(dev))
|
|
goto done;
|
|
|
|
if (dev->priv_flags & IFF_802_1Q_VLAN) {
|
|
dev = vlan_dev_real_dev(dev);
|
|
goto recheck;
|
|
}
|
|
|
|
if (!is_netxen_netdev(dev))
|
|
goto done;
|
|
|
|
adapter = netdev_priv(dev);
|
|
|
|
if (!adapter || !netxen_destip_supported(adapter))
|
|
goto done;
|
|
|
|
if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
|
|
goto done;
|
|
|
|
switch (event) {
|
|
case NETDEV_UP:
|
|
netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
|
|
break;
|
|
case NETDEV_DOWN:
|
|
netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return NOTIFY_DONE;
|
|
}
|
|
|
|
static struct notifier_block netxen_netdev_cb = {
|
|
.notifier_call = netxen_netdev_event,
|
|
};
|
|
|
|
static struct notifier_block netxen_inetaddr_cb = {
|
|
.notifier_call = netxen_inetaddr_event,
|
|
};
|
|
#else
|
|
static void
|
|
netxen_config_indev_addr(struct net_device *dev, unsigned long event)
|
|
{ }
|
|
#endif
|
|
|
|
static struct pci_error_handlers netxen_err_handler = {
|
|
.error_detected = netxen_io_error_detected,
|
|
.slot_reset = netxen_io_slot_reset,
|
|
.resume = netxen_io_resume,
|
|
};
|
|
|
|
static struct pci_driver netxen_driver = {
|
|
.name = netxen_nic_driver_name,
|
|
.id_table = netxen_pci_tbl,
|
|
.probe = netxen_nic_probe,
|
|
.remove = __devexit_p(netxen_nic_remove),
|
|
#ifdef CONFIG_PM
|
|
.suspend = netxen_nic_suspend,
|
|
.resume = netxen_nic_resume,
|
|
#endif
|
|
.shutdown = netxen_nic_shutdown,
|
|
.err_handler = &netxen_err_handler
|
|
};
|
|
|
|
static int __init netxen_init_module(void)
|
|
{
|
|
printk(KERN_INFO "%s\n", netxen_nic_driver_string);
|
|
|
|
#ifdef CONFIG_INET
|
|
register_netdevice_notifier(&netxen_netdev_cb);
|
|
register_inetaddr_notifier(&netxen_inetaddr_cb);
|
|
#endif
|
|
return pci_register_driver(&netxen_driver);
|
|
}
|
|
|
|
module_init(netxen_init_module);
|
|
|
|
static void __exit netxen_exit_module(void)
|
|
{
|
|
pci_unregister_driver(&netxen_driver);
|
|
|
|
#ifdef CONFIG_INET
|
|
unregister_inetaddr_notifier(&netxen_inetaddr_cb);
|
|
unregister_netdevice_notifier(&netxen_netdev_cb);
|
|
#endif
|
|
}
|
|
|
|
module_exit(netxen_exit_module);
|